Sectional inking roller for printing presses



Feb. 17, 1942. R. 1 sTUMPF 2,273,669

- sEcTIoNAL INKING ROLLER FOR PRINTING PREssEs Filed Feb. 28, 1941INVENTOR /Z I? ATTORNEYS Patented Feb. 17,1942

SECTIONAL INKING ROLLER FOR PRINTING PRESSES Russell L. Stumpf,Springfield, Ohio, assignor of one-half to Louis J. Stumpf, Springfield,Ohio Application February 28, 1941, Serial No. 381,099 5 claims. (ci.iol- 205) This invention relates to sectional inking rollers forprinting presses of the multi-color type.

In multi-color printing presses it is the practice to form the inkingsurface of both the plate rollers and ink distributing rollers` insections, one section for each compartment in the ink font, it beingunderstood that the compartments contain inks of different colors.

One of the objects of the invention is to provide a sectional inkingroller, the sections of which may be readily removed after wear andreplaced with new sections.

A further object of the invention is to provide a sectional roller, thesections of which may be readily secured in any desired position on theroller shaft to adapt the sections to conditions as to color printing ofanyissue of the publication which is being printed.

Another object of the invention is to provide a sectional roller, thesections of which may be readily adjusted to vary the space betweenadjacent ends of the sections.

A further object of the invention is to provide an arrangement by whichthe different sections of the roller may be readily reversed so that thespaces between adjacent sections may be varied;

In the accompanying drawing:

Fig. 1 is a View partly in longitudinal section and partly in elevation,with parts of the elevation broken away and shown in section, of aninking roller embodying the improvements.

Fig. 2 is an enlarged longitudinal sectional view of one of the sectionsof the roller before it is mounted upon the roller shaft.

Fig. 3 is an enlarged end View looking from the left in Fig. 1.

Fig. 4 is an enlarged end View looking from the right of Fig. 1.

Fig. 5 is an enlarged section on the line 5-5 of Fig. 1.

Referring to the drawing, there is shown in the present case two fullsections and two partial sections of an inking roller, although it willbe understood that any desired number of sections may be employed andthat these sections may be all of the same length as shown or ofdifferent lengths to suit conditions, the lengths of the sectionsvarying preferably from 6 to 221/2. Each of these sections has an outerinking surface indicated respectively at I, 2, 3 and 3. This inkingsurface may be formed of synthetic rubber,`soft vulcanized rubber,printers roller composition or of any other suitable material. The

composition or other material is moulded or.

otherwise mounted upon a metallic sleeve 4, the

VI I) periphery of this sleeve in the present case being preferablyformed with a plurality of annular grooves 4', as shown in Fig. 2, inwhich the inking material becomes embedded to hold the material againstslippage inan endwise direction.

Each end of each sleeve is provided with a bushing 'I and 8 preferablyof metal, the bushings being permanently connected with the sleevespreferably by sweating, the diameter of the bore of each sleeve beingslightly enlarged at its ends so as to form shoulders to properlyposition the bushings. One of the bushings of each section, such as theone I is formed with an extended part shown in the present case as anannular flange 9 having a threaded aperture to receive a set-screw IUfor the purpose to be explained, while the other bushing 8 has its outerend preferably ush with the outer end of the inking surface, or at leastextending no appreciable distance therebeyond.

The shaft of the roller is indicated at II, each end of the shaftpreferably having a reduced portion I2 to form a` handle, these reducedportions having extending therefrom trunnions I3 which are rotatablyjournalled in suitable bearings (not shown) in the press in the usualway. The shaft is formed with a longitudinal keyway I to receive a keyI4 which is permanently secured to the shaft by a plurality of screwsI5. Each of the bushings 'I and 8 is also provided with a longitudinallyextending keyway I and 8' to receive this key so as to connect thebushings and hence the inking sections 3 and their sleeves 4 with theshaft when the parts vare assembled. After the sections have beenslippedupon the shaft the set screws are tightened against the key so asto hold the sections against endwise movement.

By this arrangement it will be seen that when worn the sections may bereadily removed and replaced with new sections of -suitable length andit will also be seen that in the event it is desired to decrease thespace between adjacent ends of any two sections, as is sometimesnecessary, this is readily accomplished by reversing an intermediatesection so that the unflanged bushing 8 of one section will be adjacentthe unflanged bushing 8 of another section. In the example of sectionalrollers shown in the drawing this would be accomplished by reversing theleft hand section and also an intermediate section adjacent thereto orthe right-hand section and intermediate section adjacent thereto.

Having thus described my invention, I claim:

1. In a sectional inking roller, a shaft, a plurality of inkingsections, each section consisting of a sleeve, a covering ofink-applying material on the outer surface of said sleeve, a bushing ineach end of said sleeve and connected therewith, one of said bushingsextending no substantial distance beyond the corresponding end of saidsleeve, the other bushing having an extended part projecting beyond saidsleeve, a key secured to said shaft, each of said bushings having akeyway to receive said key to hold said bushing connected with saidshaft to rotate therewith, and means carried by said extended part toengage said key to hold said section against endwise movement on saidshaft.

2. In a sectional inking roller, a shaft, a plurality of inkingsections, each section consisting of a sleeve, a covering ofink-applying material Von the outer surface of said sleeve, a bushing ineach end of said sleeve and connected therewith, one of said bushingsextending no substantial distance beyond the corresponding end of saidsleeve, an annular flange formed on the outer end of the other bushing,a key secured to said shaft and key-ways in said bushings to hold saidbushings connected with said shaft to rotate therewith, and meanscarried by said flange to engage said key to hold said sections againstendwise movement on said shaft.

3. In a sectional inking roller, a shaft, a plurality of inkingsections, each section consisting of a sleeve, a covering ofink-applying material on the outer surface of said sleeve, a bushing ineach end of said sleeve and connected therewith, one of said bushingsextending no substantial distance beyond the corresponding end of saidsleeve, the other bushing having an extended part projecting beyond saidsleeve, a key secured to said shaft and key-ways in said bushings tohold said bushings connected with said shaft to rotate therewith, and aset-screw carried by said extended part to engage said key to hold saidsection against endwise movement on said shaft.

4. In a sectional inking roller, a shaft, a plurality of inkingsections, each section consisting of a sleeve, a covering ofink-applying material on the outer surface of said sleeve," a bushing ineach end of said sleeve and connected therewith, one of said bushingsextendingy no substantial distance beyond the corresponding end of saidsleeve, the other bushing having an extended part projecting beyond saidsleeve, a key seated in a shallow groove in said shaft, screws forconnecting said key to said shaft, a key-way in each bushing to receivesaid key to hold said bushings connected with said shaft to rotatetherewith, and a set-screw carried by said extended part to engage saidkey to hold said section against endwise movement on said shaft.

5. In a sectional inking roller, a shaft, a plurality of inkingsections, each section consisting of a sleeve, a covering ofink-applying material on the outer surface of said sleeve, a bushing ineach end of said sleeve and connected therewith, one of said bushingsextending no substantial distance beyond the corresponding end of saidsleeve, the other bushing having an extended part projecting beyond saidsleeve, a single key formed separately from the shaft and secured tosaid shaft and common to all of said sections, a key-way in each bushingto receive said key to cause said bushing to rotate with said shaft, andmeans carried by said extended parts to engage said key to hold saidsections against endwise movement on said shaft but permit theadjustment of said sections with respect thereto.

RUSSELL L. STUMPF.

